GeForce 4 MX440 blank screen

But the problem is, it does not display anything. I can hear Windows booting (through the startup sounds) but the monitor's on standby mode. (but power LED's blinking faster - compare it to the usual standby blink.)

I have been having long - term problems of exactly the same nature with an ATI radeon 9200. It did work in one machine ... belonging to my friend. The caps lock would flash on and off forever until I took the card out and put in the original PCI card ( the PCI wouldn't work with the ATI card in the AGP slot either - screwed there too!). My monitor behaves the same way with this ATI card: everything sounds normal, monitor powers up and then hibernates, light flashing forever.